| 1000 kV交流同塔双回线路伞形塔与鼓型塔比较 |
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| 引用本文： | 谷定燮,胡伟,张业茂,何慧雯. 1000 kV交流同塔双回线路伞形塔与鼓型塔比较[J]. 高电压技术, 2010, 36(1): 129-135 |
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| 作者姓名： | 谷定燮 胡伟 张业茂 何慧雯 |
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| 作者单位： | 国网电力科学研究院,武汉,430074;国网电力科学研究院,武汉,430074;国网电力科学研究院,武汉,430074;国网电力科学研究院,武汉,430074 |
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| 基金项目： | 国家电网公司科技项目(SGKJ[2007]1046;SG-ZX07-06;WGZX-0828)~~ |
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| 摘 要： | 为对特高压交流输电线路建设提供技术基础,比较了劈腿式伞形塔和收腰式伞形塔的区别,指出后者防雷性能好、杆塔质量小、工频场强稍小,收腰式伞形塔的性能优于劈腿式伞形塔。选择采用劈腿式伞形塔,还是收腰式伞形塔,与导线水平位移距离的要求值大小有关。特高压交流同塔双回线路导线之间的垂直距离达21 m,从脱冰跳跃的计算和试验结果论证了特高压交流同塔双回线路导线间不需要特别提出水平位移距离要求,收腰式伞形塔可以满足脱冰跳跃要求。双回线路的中相导线是同名相,中相导线之间的距离稍有差异,对电磁环境影响很小。通过线路的计算表明,特高压同塔双回收腰式伞形塔线路可以满足电磁环境标准要求,与鼓型塔的基本相同。在防雷性能上收腰式伞形塔明显优于鼓型塔。建议我国特高压交流同塔双回线路宜选择收腰式伞形塔。
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| 关 键 词： | 1000kV 同塔双回线路 塔型 导线排列 伞型 鼓型 |
Difference Between Umbrella-shaped Tower and Drum-shaped Tower of UHV AC Double-circuit Transmission Line on the Same Tower |
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| GU Ding-xie , HU Wei , ZHANG Ye-mao , HE Hui-wen. Difference Between Umbrella-shaped Tower and Drum-shaped Tower of UHV AC Double-circuit Transmission Line on the Same Tower[J]. High Voltage Engineering, 2010, 36(1): 129-135 |
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| Authors: | GU Ding-xie HU Wei ZHANG Ye-mao HE Hui-wen |
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| Affiliation: | State Grid Electric Power Research Institute;Wuhan 430074;China |
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| Abstract: | The differences between the split umbrella-shaped tower(lengthen the lowest phase's cross arm of drum-shaped tower)and tight waist umbrella-shaped tower(shorten the middle phase's cross arm of drum-shaped tower) are investigated.It is pointed out the performance of tight waist umbrella-shaped tower is better because of better lightning protection,the lighter weight and lower field strength.The selection of the split umbrella-shaped tower or tight waist umbrella-shaped tower depends on the demand horizontal ... |
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| Keywords: | 1000kV double-circuit transmission line tower type conductor arrangement umbrella shape drum shap |
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